Barrio de las cuevas de Guadix Curiosity · Guadix, Comarca de Guadix, Granada The largest neighborhood of inhabited cave houses in Europe; its origin is attributed either to Moriscos who returned secretly after the 1570 expulsion, or to poor Christians without the means to live within the city walls after the Reconquista. Photo: Elgaard (CC BY-SA 4.0) What to see and do in Guadix